package cn.dengl.sky.springboot.common.config.swagger;

import com.google.common.base.Predicate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import springfox.documentation.RequestHandler;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

/**
 * 集成Swagger框架
 *
 */
@Configuration
@EnableSwagger2
public class SwaggerConfig {
    @Autowired
    private Environment env;

    @Bean
    public Docket createRestApi(){
        Predicate<RequestHandler>predicate=new Predicate<RequestHandler>() {
            @Override
            public boolean apply(RequestHandler requestHandler) {
                // 除非是在开发环境中否则不开启swagger2
                String active = env.getProperty("spring.profiles.active");
                if(!active.equalsIgnoreCase("dev")){
                    return false;
                }
                Class<?> declaringClass =requestHandler.declaringClass();
                if(declaringClass==BasicErrorController.class){//排除
                    return false;
                }
                if(declaringClass.isAnnotationPresent(RestController.class)){// 被注解的类
                    return true;
                }
                if(requestHandler.isAnnotatedWith(ResponseBody.class)){///被注解的方法
                    return true;
                }
                return false;
            }
        };
        return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo())
                .useDefaultResponseMessages(false)
                .select()
                .apis(predicate)
                .build();

    }
    private ApiInfo apiInfo(){
        return  new ApiInfoBuilder().title("测试专用接口页面").version("1.0").build();
    }

}
